Journal of Fluorescence最新文献_第4页

Biomass Carbon Dots as Fluorescent Probes for Fast and Highly Selective Detection of Fe^3 + in Water Media. 作为荧光探针的生物质碳点可快速、高选择性地检测水介质中的 Fe3 +。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-19 DOI: 10.1007/s10895-024-03995-0

Hongyan Zeng, Meiyan Zhang, Huan Peng, Hongmei He, Jinrong Feng, Huanyu He

{"title":"Biomass Carbon Dots as Fluorescent Probes for Fast and Highly Selective Detection of Fe3 + in Water Media.","authors":"Hongyan Zeng, Meiyan Zhang, Huan Peng, Hongmei He, Jinrong Feng, Huanyu He","doi":"10.1007/s10895-024-03995-0","DOIUrl":"https://doi.org/10.1007/s10895-024-03995-0","url":null,"abstract":"In this study, a novel fluorescent probe for the rapid and highly selective detection of Fe3 + based on biomass carbon dots (b-CDs) was developed. The b-CDs were obtained via one-step hydrothermal synthesis by utilizing laurel fallen leaves. And the as-synthesized b-CDs were applied for sensing Fe3+ based on fluorescence (FL) quenching effect both in water and phosphate buffer solution (PBS) with a wide linear range from 1 µM to 300 µM, the detection limits (LODs) respectively to be 0.34 µM in water and 0.48 µM in PBS solution. The FL intensity of b-CDs was quenched fleetly within 1 min after adding Fe3+. The sensing mechanism of the b-CDs + Fe3+ system can be attributed to the internal filtration effect (IFE) mechanism and the electron transfer (ET) between b-CDs and Fe3+ in water, and only the IFE mechanism in PBS solution based on multiple experimental evidences. Moreover, the as-proposed probe was successfully adopted for monitoring Fe3+ in lake water and tap water samples. This research shows some merits of economic, simplicity, green, high selectivity, and quick response for Fe3+ determination, and provides an approach for the water quality monitoring of Fe3+ and the effective utilization of waste biological materials.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective Detection of Divalent Cations (Cu²⁺, Zn²⁺, Pb²⁺) and Anions (SO₄^2-, S^2-, CO₃^2-) Using a pH-Sensitive Multi-functional Schiff Base in Neutral Medium. 在中性介质中使用 pH 值敏感的多功能席夫碱选择性检测二价阳离子（Cu2+、Zn2+、Pb2+）和阴离子（SO42-、S2-、CO32-）。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-18 DOI: 10.1007/s10895-024-03958-5

Siddharth Gautam, Nancy Gupta, Md Najbul Hoque

{"title":"Selective Detection of Divalent Cations (Cu2+, Zn2+, Pb2+) and Anions (SO42-, S2-, CO32-) Using a pH-Sensitive Multi-functional Schiff Base in Neutral Medium.","authors":"Siddharth Gautam, Nancy Gupta, Md Najbul Hoque","doi":"10.1007/s10895-024-03958-5","DOIUrl":"https://doi.org/10.1007/s10895-024-03958-5","url":null,"abstract":"A new Schiff base-based multi-cation/anion probe (L) has been synthesized and characterized using HR-MS, FT-IR, 1H, and 13C NMR techniques. The Schiff base motif provides specific binding sites that detect cations and anions by generating distinct optical output signals upon interaction. A noticeable color change of the probe solution was observed from pale yellow to various shades of yellow upon adding cations such as Cu2+, Zn2+, and Pb2+ and anions such as CO32⁻, S2⁻, and SO42⁻. This color change results from forming complexes like M3L2 with metal ions. Whereas origin of color in presence of anion were attributed due to the deprotonation of acidic proton in the ligand. Moreover, the complexes formed by Zn2+, S2/CO32⁻ ion with L are fluorescent, enabling the detection of Cu2+ and SO42⁻ using the Stern-Volmer plot, with a limit of detection (LODs) of 8.48 µM and 10.47 µM, respectively. Additionally, increasing the pH of the probe solution above 8 reveals a significant enhancement of fluorescence intensity due to the deprotonation of phenolic -OH and amide -NH in the presence of hydroxide ions. This emission in the basic medium is quenched by Cu2+ ions and restored when Cu2+ is complexed with EDTA. A logic gate has also been constructed for understanding the TURN-OFF-TURN-ON mechanism involving Cu2+ ions and EDTA. Overall, the versatile performance of a single probe L opens up new possibilities as a multifunctional sensor, making it highly suitable for practical applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling Fluorescence Spectroscopy, Molecular Docking and Dynamic Simulations: Interactions Between Protein and 2, 4-Dinitrophenylhydrazine Schiff Base. 揭开荧光光谱学、分子对接和动态模拟的神秘面纱：蛋白质与 2，4-二硝基苯肼席夫碱之间的相互作用。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-18 DOI: 10.1007/s10895-024-03939-8

Tapan K Rana, Patitapaban Mohanty, Pragyan P Dash, Swagatika Mishra, Sorav Sagar Tripathi, Priyaranjan Mohapatra, Aruna Kumar Barick, Pradip K Jena, R Bhaskaran, Mohd S Khan, Mohammad R Khan, Lingaraj Behera, Bigyan Ranjan Jali

{"title":"Unveiling Fluorescence Spectroscopy, Molecular Docking and Dynamic Simulations: Interactions Between Protein and 2, 4-Dinitrophenylhydrazine Schiff Base.","authors":"Tapan K Rana, Patitapaban Mohanty, Pragyan P Dash, Swagatika Mishra, Sorav Sagar Tripathi, Priyaranjan Mohapatra, Aruna Kumar Barick, Pradip K Jena, R Bhaskaran, Mohd S Khan, Mohammad R Khan, Lingaraj Behera, Bigyan Ranjan Jali","doi":"10.1007/s10895-024-03939-8","DOIUrl":"https://doi.org/10.1007/s10895-024-03939-8","url":null,"abstract":"In this study, we aimed to explore the interaction mechanism between bovine serum albumin (BSA) and a Schiff base compound derived from 2,4-dinotrophenyl hydrazine (L) using various spectroscopic techniques. The interaction between BSA and synthesizing molecule can provide insights into binding affinity, conformational changes and potential applications in drug delivery or biochemistry. The interaction between BSA and L was studied by using UV-Vis and fluorescence titration analysis. The fluorescence quenching emission was observed at 343 nm, upon addition of L to the buffer solution of BSA. The binding between BSA and ligand is static in nature using fluorescence quenching emission. The thermodynamic parameters were calculated from the temperature-dependent binding constants (i.e., ∆H = -0.318 kcal/mol, ∆G = -7.857 kcal/mol and ∆S = 0.023 kcal/mol), which indicated that the protein-ligand complex formation between L and BSA is mainly due to the electrostatic interactions. The experimental and theoretical results showed excellent agreement with respect to the mechanism of binding and binding constants. The molecular docking and molecular dynamic analysis experiments were performed to establish the interaction between protein and ligand.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-dependent Rotational Dynamics of a 3-(benzo[d]Thiazol-2-yl)-7-diethylamino)-2 H-chromen-2-one non-polar Probe in n-pentanol, n-nonanol, and n-decanol Solvents. 3-(苯并[d]噻唑-2-基)-7-二乙基氨基)-2 H-色烯-2-酮非极性探针在正戊醇、正壬醇和正癸醇溶剂中的温度依赖性旋转动力学。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-18 DOI: 10.1007/s10895-024-03972-7

Anil Kumar, C G Renuka

引用次数: 0

Effective Determination of Diosmin Using Nitrogen Doped Carbon Dots as Probe Based on Internal Filtering Effect. 基于内部过滤效应，使用掺氮碳点探针有效测定地奥司明

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-17 DOI: 10.1007/s10895-024-03963-8

Xian Chen, Menghan Zhang, Lang Zheng, Xiaoqin Deng, Qiang Chen, Wendi Han, Zhengjun Huang, Shaohuang Weng

{"title":"Effective Determination of Diosmin Using Nitrogen Doped Carbon Dots as Probe Based on Internal Filtering Effect.","authors":"Xian Chen, Menghan Zhang, Lang Zheng, Xiaoqin Deng, Qiang Chen, Wendi Han, Zhengjun Huang, Shaohuang Weng","doi":"10.1007/s10895-024-03963-8","DOIUrl":"https://doi.org/10.1007/s10895-024-03963-8","url":null,"abstract":"The establishment of a convenient and efficient testing method is crucial and needed for the monitoring of diosmin. In this study, nitrogen doped carbon dots (N-CDs) with the particle size distribution of 2.5-5.7 nm and the average diameter of 4.1 nm were successfully synthesized using a simple strategy. N-CDs exhibited excellent and stable fluorescence performance with the quantum yield of 22.33%. Correspondingly, a fluorescence analytical method was developed for diosmin determination using N-CDs as probe. UV-vis absorbance spectroscopy and the evaluation of internal filtering parameters verified that the mechanism causing the quenching of N-CDs was an internal filtering effect (IFE). The concentration of diosmin can be directly evaluated based on the quenched fluorescence intensities. After optimizing experimental conditions, it was found that the fluorescence quenching efficiency ((F0-F)/F0) of N-CDs exhibited a good linear relationship with the concentration of diosmin (CDiosmin) in the range of 3.0-50 µg/mL. The limit of detection (LOD) was 0.86 µg/mL based on 3σ/slope (n = 13). This method was successfully applied to accurately determine the content of diosmin in diosmin tablets and human plasma samples with good reproducibility. It stands out for its simplicity, speed, and acceptable determination performance.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in the Synthesis and Optical Applications of Acridine-based Hybrid Fluorescent Dyes. 基于吖啶的混合荧光染料的合成和光学应用的最新进展。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-17 DOI: 10.1007/s10895-024-04001-3

Mehdi Pordel, Hanieh Gheibi, Ayda Sharif

引用次数: 0

Synthesis of CuInS₂ Quantum Dots Modified with Alanine for Sensitive and Selective Detection of Pb²⁺ and Cysteine. 用丙氨酸修饰的 CuInS2 量子点的合成，用于灵敏和选择性地检测 Pb2+ 和半胱氨酸。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-16 DOI: 10.1007/s10895-024-03947-8

Zixuan Jia, Menghan Chen, Mohan Yang, Shenna Chen, Xuhong Zhang

引用次数: 0

Green Protocol for the Synthesis of Luminescent Carbon Nanodots Derived from Murraya Koenigii Leaves and Urea: Enhancing Photoluminescence for Advanced Bioimaging. 从鹅掌楸叶和尿素中合成发光碳纳米点的绿色方法：增强先进生物成像的光致发光。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-16 DOI: 10.1007/s10895-024-03953-w

Urvi M Lad, Dhruti J Dave, Bhumi N Desai, Devesh H Suthar, Chetan K Modi

{"title":"Green Protocol for the Synthesis of Luminescent Carbon Nanodots Derived from Murraya Koenigii Leaves and Urea: Enhancing Photoluminescence for Advanced Bioimaging.","authors":"Urvi M Lad, Dhruti J Dave, Bhumi N Desai, Devesh H Suthar, Chetan K Modi","doi":"10.1007/s10895-024-03953-w","DOIUrl":"https://doi.org/10.1007/s10895-024-03953-w","url":null,"abstract":"We have synthesized Murraya Koenigii leaves powder-derived carbon nanodots (CNDs) by hydrothermal method. A tribute to our commitment to environmental sustainability is the unique composition of our CNDs, which are made entirely of natural carbon sources and a green solvent, water. Our further efforts to improve performance led us to start making nitrogen-doped CNDs. By using urea as a non-toxic source of nitrogen, we observed a substantial increase in fluorescence intensity, extending the usefulness and potential of these nanomaterials. We investigated the optical properties using UV-Vis and fluorescence spectroscopy. The other parameters, like structural and size-shape morphology, were analyzed using FTIR, XRD, and HR-TEM, respectively. The fluorescence spectroscopy demonstrated their capability to exhibit wavelength-dependent photoluminescence (PL), highlighting the potential of these CNDs for cell bioimaging applications. The fluorescence properties affirm their suitability for biomedical applications, as they do not involve any inherent risk to cells.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green Synthesis of Luminescent Carbon Dots from Ficus benghalensis Aerial Roots for Bioimaging. 从榕树根部绿色合成用于生物成像的发光碳点

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-16 DOI: 10.1007/s10895-024-03964-7

Renuga Devi Navaneethan, Arrthi Ravitchandiran, Ashok Kumar Subramania, Manikandan Elayaperumal, Rajamohan Rajaram, Subramania Angaiah

{"title":"Green Synthesis of Luminescent Carbon Dots from Ficus benghalensis Aerial Roots for Bioimaging.","authors":"Renuga Devi Navaneethan, Arrthi Ravitchandiran, Ashok Kumar Subramania, Manikandan Elayaperumal, Rajamohan Rajaram, Subramania Angaiah","doi":"10.1007/s10895-024-03964-7","DOIUrl":"https://doi.org/10.1007/s10895-024-03964-7","url":null,"abstract":"In this work, carbon quantum dots (CQDs) were prepared using a one-step hydrothermal green synthesis method from a low-cost and eco-friendly renewable biomass, specifically the Ficus benghalensis aerial roots (FB-AR). For the past two decades, CQDs have been noted for their tunable emission spectrum, quantum yield, biocompatibility, photostability, and unique optoelectronic properties such as photoluminescence (PL), and fluorescence. The synthesized Ficus benghalensis carbon quantum dots (FB-CQDs) were characterized for their physical, structural, and chemical properties using XRD, Raman, HRTEM, XPS, FTIR, TG-DTG, UV-visible, and photoluminance analysis. XPS analysis confirmed the presence of phytoconstituent functionalities and the composition of components. The FB-CQDs, which exhibit long-range emissions, have potential applications in various biological and therapeutic fields. Their bioimaging capability is tested in Escherichia coli bacteria. However, despite their promising characteristics, the FB-CQDs showed no antibacterial inhibition against Escherichia coli and Staphylococcus aureus, likely due to its carbonization temperature.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Restricted Intramolecular Rotation: A Dual Fluorescence Response to Hg²⁺ Quenching and Ag⁺ Enhancement in Live Rhizoctonia Solani Cells. 分子内旋转受限：活体根瘤菌细胞中对 Hg2+ 淬灭和 Ag+ 增强的双重荧光反应。

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2024-10-16 DOI: 10.1007/s10895-024-03976-3

Ramanjaneyulu Mala, Dhakshinamurthy Divya, Manivannan Nandhagopal, Sathiah Thennarasu

{"title":"Restricted Intramolecular Rotation: A Dual Fluorescence Response to Hg2+ Quenching and Ag+ Enhancement in Live Rhizoctonia Solani Cells.","authors":"Ramanjaneyulu Mala, Dhakshinamurthy Divya, Manivannan Nandhagopal, Sathiah Thennarasu","doi":"10.1007/s10895-024-03976-3","DOIUrl":"https://doi.org/10.1007/s10895-024-03976-3","url":null,"abstract":"A novel imidazo[1,2-a]pyridine derivative probe (R) was designed, synthesized, and characterized via various characterization techniques, such as ESI-MS, 1H NMR, 13C NMR, and Dept-135 NMR. The data obtained from single-crystal XRD reveal that probe R has a coplanar configuration and is part of the monoclinic crystal system, designated the P2(1)/n space group. The fluorescence of (R) is further enhanced by silver (I) ions. On the other hand, Hg2+ significantly quenches the fluorescence of probe R. The presence of other common metal ions does not influence the fluorescence of probe R in the CH3CN: H2O (1:1) mixture, as they neither increase nor quench it. From the fluorescence enhancement data, the low detection limit (LOD) for Ag + ions was determined to be 1.24 × 10- 8 M, whereas the quenching caused by Hg2+ resulted in an LOD of 5.69 × 10- 9 M. The complex of probe R with Ag+/Hg2+ exhibited a 1:1 stoichiometry, as confirmed by mass spectrometry and a Job plot. Single-crystal XRD analysis of R and its complex with Hg2+ revealed a loss of coplanarity, which confirmed their nonfluorescent behavior. We present a promising application of probe R in visualizing living Rhizoctonia oryzae cells exposed to silver (I) and mercury (II) ions.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0